From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Liu Subject: Re: Domctl and physdevop for passthrough (Was: Re: Stabilising some tools only HVMOPs?) Date: Mon, 22 Feb 2016 11:56:44 +0000 Message-ID: <20160222115644.GA3723@citrix.com> References: <20160217172808.GB3723@citrix.com> <20160219160539.GV3723@citrix.com> <56CAFEE302000078000D4A74@prv-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1aXp6e-0005zj-Kg for xen-devel@lists.xenproject.org; Mon, 22 Feb 2016 11:56:48 +0000 Content-Disposition: inline In-Reply-To: <56CAFEE302000078000D4A74@prv-mh.provo.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Jan Beulich Cc: Wei Liu , Ian Campbell , Stefano Stabellini , Andrew Cooper , Ian Jackson , PaulDurrant , Anthony PERARD , Xen-devel List-Id: xen-devel@lists.xenproject.org On Mon, Feb 22, 2016 at 04:28:19AM -0700, Jan Beulich wrote: > >>> On 19.02.16 at 17:05, wrote: > > On Wed, Feb 17, 2016 at 05:28:08PM +0000, Wei Liu wrote: > >> Hi all > >> > >> Tools people are in the process of splitting libxenctrl into a set of > >> stable libraries. One of the proposed libraries is libxendevicemodel > >> which has a collection of APIs that can be used by device model. > >> > >> Currently we use QEMU as reference to extract symbols and go through > >> them one by one. Along the way we discover QEMU is using some tools > >> only HVMOPs. > >> > >> The list of tools only HVMOPs used by QEMU are: > >> > >> #define HVMOP_track_dirty_vram 6 > >> #define HVMOP_modified_memory 7 > >> #define HVMOP_set_mem_type 8 > >> #define HVMOP_inject_msi 16 > >> #define HVMOP_create_ioreq_server 17 > >> #define HVMOP_get_ioreq_server_info 18 > >> #define HVMOP_map_io_range_to_ioreq_server 19 > >> #define HVMOP_unmap_io_range_from_ioreq_server 20 > >> #define HVMOP_destroy_ioreq_server 21 > >> #define HVMOP_set_ioreq_server_state 22 > >> > > > > In the process of ploughing through QEMU symbols, there are some domctls > > and physdevops used to do passthrough. To make passthrough APIs in > > libxendevicemodel we need to stabilise them as well. Can I use the same > > trick __XEN_TOOLS_STABLE__ here? If not, what would be the preferred way > > of doing this? > > > > PASSTHRU > > `xc_domain_bind_pt_pci_irq` `XEN_DOMCTL_bind_pt_irq` > > `xc_domain_ioport_mapping` `XEN_DOMCTL_ioport_mapping` > > `xc_domain_memory_mapping` `XEN_DOMCTL_memory_mapping` > > `xc_domain_unbind_msi_irq` `XEN_DOMCTL_unbind_pt_irq` > > `xc_domain_unbind_pt_irq` `XEN_DOMCTL_unbind_pt_irq` > > `xc_domain_update_msi_irq` `XEN_DOMCTL_bind_pt_irq` > > `xc_physdev_map_pirq` `PHYSDEVOP_map_pirq` > > `xc_physdev_map_pirq_msi` `PHYSDEVOP_map_pirq` > > `xc_physdev_unmap_pirq` `PHYSDEVOP_unmap_pirq` > > Mechanically I would say yes, but anything here which is also on > the XSA-77 waiver list would first need removing there (with > proper auditing and, if necessary, fixing). > Ack. Thanks for your reply. Wei. > Jan >